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Fractional-order Local Wavenumber - An Improved Source-parameter Estimator
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 77th EAGE Conference and Exhibition 2015, Jun 2015, Volume 2015, p.1 - 5
Abstract
Summary
We present an improved local wavenumber method, based on the fractional-order differentiation of potential fields. Such kind of differentiation allows a fractional-order local wavenumber to be defined, whose usefulness is two-fold: a) the positions of the peaks of the two different-order local wavenumber are essentially the same and also holds in their difference; b) the noise-enhancement may be kept to a minimum, if compared to standard local wavenumber, based on integer-order field differentiation. The fractional-order local wavenumber is applied to synthetic and real examples and it provided a good estimation of both depth to sources and structural index.
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